Hello,This issue stands fixed in AEM 6.3.3.0 via NPR-24177. This was reported for AEM 6.3.2.2 .What is the exact version of AEM you are using?Regards,Anubha

Hi Indra,Please compare the configuration: Day Cq Link Checker Service on your pre prod environment with your QA environment.You can also test resolving the link by using the URL : http://localhost:port/system/console/jcrresolver